Two powerhouse roundtables join George Stephanopoulos to tackle the latest challenges at home and abroad, Sunday on "This Week."

House Intelligence Committee Chair Rep. Mike Rogers, R-Mich., and Foreign Affairs Committee Ranking Member Rep. Eliot Engel, D-NY, join ABC News' George Will and ABC News Global Affairs Anchor Christiane Amanpour to debate how the U.S. should respond to the cyber threat from China and the latest challenges in Syria and Iran.

Then, the political roundtable debates all the week's politics, with George Will; Democratic strategist and ABC News contributor Donna Brazile; TIME Magazine contributor Steven Brill, author of this week's cover story, "Bitter Pill," on rising health care costs; former Lead Auto advisor and Counselor to the Treasury Secretary Steven Rattner; and Wall Street Journal columnist Kimberley Strassel. With automatic spending cuts just days away, how will the economy be impacted if Congress and President Obama can't come together for another last-minute deal? As President Obama reaches out to Republicans on immigration reform, will the GOP face more blowback at home over making a deal? And as Vice President Biden keeps his focus on guns, are we any closer to a vote on gun control legislation? The roundtable debates those topics and more, including their Oscar picks, Sunday on "This Week."